Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:10 2012

Optimize a model with 251 rows, 102 columns and 502 nonzeros
Presolve removed 51 rows and 8 columns
Presolve time: 0.00s
Presolved: 200 rows, 94 columns, 414 nonzeros
Variable types: 0 continuous, 94 integer (94 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 4.800000e+01, 129 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   48.00000    0   84   40.00000   48.00000  20.0%     -    0s
     0     0   46.50000    0   93   40.00000   46.50000  16.2%     -    0s
     0     0   46.30000    0   93   40.00000   46.30000  15.8%     -    0s
H    0     0                      44.0000000   46.30000  5.23%     -    0s
     0     0   45.70000    0   94   44.00000   45.70000  3.86%     -    0s
     0     0   45.42857    0   93   44.00000   45.42857  3.25%     -    0s
     0     0   45.33333    0   94   44.00000   45.33333  3.03%     -    0s
     0     0     cutoff    0        44.00000   44.99995  2.27%     -    0s

Cutting planes:
  Zero half: 92

Explored 0 nodes (379 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%